<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
      xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
      layout:decorator="layouts/main">
<head>
    <th:block layout:include="nav :: head"></th:block>
</head>
<div layout:fragment="page-nav">
    <th:block layout:replace="nav :: nav"></th:block>
</div>
<div class="island" layout:fragment="page-content">
    <h1>Temporary Authentication Code</h1>
    <h2 th:text="${passcode}">my-code</h2>
</div>
</html>